Browse > Article
http://dx.doi.org/10.4191/KCERS.2010.47.6.553

The Synthesis of Silica Aerogel in the Macroporous Ceramic Structure by Sono-gel Process and Supercritical Drying Process  

Hong, Sun-Wook (Engineering Ceramics Research Group, Korea Institute of Materials Science)
Song, In-Hyuck (Engineering Ceramics Research Group, Korea Institute of Materials Science)
Park, Young-Jo (Engineering Ceramics Research Group, Korea Institute of Materials Science)
Yun, Hui-Suk (Engineering Ceramics Research Group, Korea Institute of Materials Science)
Hwang, Ki-Young (Agency for Defense Development)
Rhee, Young-Woo (Department of Chemistry Engineering, Chungnam National University)
Publication Information
Journal of the Korean Ceramic Society / v.47, no.6, 2010 , pp. 553-559 More about this Journal
Abstract
The synthesis behavior of nanoporous silica aerogel in the macroporous ceramic structure was observed using TEOS as a source material and glycerol as a DCCA(dry control chemical additive). Silica aerogel in the macroporous ceramic structure were synthesized through a sono-gel process. The wet gel in the macroporous ceramic structure were aged in ethanol for 72 h at $50^{\circ}C$. The aged wet gel was dried under supercritical drying condition. The addition of glycerol has a role of giving the uniform pore size distribution. The reproducibility of aerogel in the macroporous ceramic was improved in the glycerol(0.05 mol%) added to the silica sol and TEOS : $H_2O$=1 : 12.
Keywords
TEOS; Macroporous ceramic; Aerogel; Glycerol; Sono-gel;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
1 A. Soleimani Dorcheh, and M. H. Abbasi, “Silica Aerogl; Synthesis, Properties and Characterization,” J. Mater. Proc. Technol., 199 10-26 (2008).   DOI   ScienceOn
2 J. Zarzycki and L. Esquivias, “Sonogel, An Aternative Method in Sol-gel Processing,” Third International Conference in Ultrastructure Processing of Ceramics, Ceramics, Glasses and Composite session, San Diego, Feb. 23-7, 1987.
3 S. Y. Kim, K. H. Lee, S. Y. Bae, and K.-P. Yoo, “Syntesis of Transparent Hydrophobic Low-Density Silica Aerogel by Modified Two-Step Sol-Gel Processing and Low Temperature Supercritical Drying,” Kor. Chem. Eng. Res., 36 [2] 293-99 (1998).
4 A. Venkateswara RaO, G. M. Pajonk, D. Haranath, and P. B. Wagh, “Effect of Glycerol on Monolithicity, Density, Microhardness and Sintering Temperature of TMOS Silica Aerogels,” Micro. Mater., 12 63-9 (1997).   DOI
5 A. Venkateswara RaO and Manish M. Kulkarni, “Effect of Glycerol Additive on Physical Properties of Hydrophobic Silica Aerogels,” Mater. Chem. Phys., 77 819-25 (2002).
6 S. W. Kuk, “A Study on Synthesis and Characterization of Silica Aerogel,” pp. 9-55, MS Thesis, Hanyang University, Seoul, 2007.
7 D. J. Suh and T. J. Park, “Effect of Aging Conditions on the Pore Structural Properties of Titania Aerogels,” J. Mater. Sci. Lett., 16 490-92 (2007).   DOI
8 S. H. Chae, Y.-W. Kim, I. H. Song, H. D. Kim, and J. S. Bae, “Effects of Template Size and Content on Porosity and Strength of Macroporous Zirconia Ceramics,” J. Kor. Ceram. Soc., 46 [1] 35-40 (2009).   과학기술학회마을   DOI   ScienceOn
9 I. S. Han, J. C. Park, S. Y. Kim, K. S. Hong, and H. J. Hwang, “Fabrication and Network Strengthening of Monolithic Silica Aerogels Using Water Glass,” J. Kor. Ceram. Soc., 44 [3] 162-68 (2007).   과학기술학회마을   DOI
10 P. H. Tewari, A. J. Hunt, and K. D. Loffus, “Ambient-Temperature Supercritical Drying of Transparent Silica Aerogel,” Mater. Lett., 3 [9-10] 363-67 (1985).   DOI   ScienceOn
11 M. Cantin, M. Casse. L. Koch. R. Jouan. P. Messtran D. Roussel. P. Bonin, J. Moutel, and S. J. Techner, “Silica Aerogels Used as Cerenkove Radiators,” Nucl. Instrum. Meth., 118 177-82 (1974).   DOI
12 N. Hüsing and U. Schubert, “Aerogel-Airy Materials: Chemistry, and Properties,” Angew. Chem. Int. Ed., 37 22-45 (1998).   DOI
13 P. H. Tewari. A. J. Hunt, and K. D. Lofftus. “Advances in Production of Transparent Silica Aerogels for Window Glazings,” pp. 31 in Aerogels. ed J. Fricke, springer progress in physics, Springer, Heidelberg, New York, 1986.
14 S. D. Bhagat, Y.-H. Kim, Y. S. Ahn, and J. G. Yeo, “Rapid Synthesis of Water-Glass Based Aerogels by In-situ Surface Modification of the Hydrogels,” App. Surf. Sci., 253 3231-36 (2007).   DOI